Tool fixture based on valve cover orifice machining

Abstract

This utility model relates to the technical field of auxiliary equipment for valve cap nozzle processing, and more particularly to a tooling fixture for valve cap nozzle processing, comprising: a first positioning post, a first positioning element, a second positioning element, and a base. The first positioning post is used to mount the valve cap to be processed. The first positioning element is mounted on the first positioning post. The second positioning element is located on the side of the first positioning post away from the first positioning element. The first positioning element is used to fix the valve cap, and the second positioning element is used to position the nozzle of the valve cap. The first positioning post is connected to the base, and the second positioning element is rotatably connected to the base. This utility model positions the valve cap nozzle through the cooperation of the first and second positioning elements. Compared with the existing direct clamping and positioning method, this method can improve the positioning accuracy of the valve cap nozzle by using the first and second positioning elements, and can also solve the problem of batch valve cap nozzle positioning consistency, thereby improving the pass rate of valve cap processing.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for valve cap nozzle processing, and in particular to a tooling fixture for valve cap nozzle processing. Background Technology

[0002] The valve cap is part of the high-pressure sealing system of a fuel injector, typically located at the end of the injector nozzle. Together with the needle valve and valve seat, it forms the injector's locking mechanism, serving as a precision sealing and structural support component, and also contributing to the sealing of the internal fuel passages. Therefore, we need to machine the nozzle orifice of the valve cap, necessitating a tooling fixture for this purpose. Currently, tooling fixtures for machining valve cap nozzles simply place the valve cap on a support platform for clamping. This method makes it difficult to ensure the positioning accuracy of the nozzle orifices in batches of valve caps. Utility Model Content

[0003] To address the shortcomings of the existing production technology, the applicant provides a tooling fixture for machining valve cap nozzles. By improving the structure of the tooling fixture, the positioning accuracy of the valve cap nozzles can be improved.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A tooling fixture for machining valve cap nozzles includes: a first positioning post, a first positioning element, a second positioning element, and a base. The first positioning post is used to mount the valve cap to be machined. The first positioning element is mounted on the first positioning post. The second positioning element is located on the side of the first positioning post away from the first positioning element. The first positioning element is used to fix the valve cap. The second positioning element is used to position the nozzle of the valve cap. The first positioning post is connected to the base, and the second positioning element is rotatably connected to the base.

[0006] Therefore, by cooperating with the first and second positioning components, the valve cap nozzle is positioned. Compared with the existing method of direct clamping and positioning, this method has a simpler structure and is easier to operate. The first and second positioning components can improve the positioning accuracy of the valve cap nozzle and solve the problem of consistent positioning of valve cap nozzles in batches, thereby improving the pass rate of valve cap processing. In addition, the rotatable connection between the second positioning component and the base allows the valve cap to switch back and forth between positioning and processing operations, which facilitates the positioning of the valve cap nozzle and the processing operations after positioning, thereby improving the convenience of valve cap installation and disassembly.

[0007] As a further improvement to the above technical solution: the first positioning component includes a fixing part and a positioning part, wherein the fixing part is mounted on the first positioning post and the positioning part is mounted on the fixing part.

[0008] As a further improvement to the above technical solution: the fixing part is mounted on the first positioning post via a first locking member. When the first locking member is in a relaxed state, the fixing part can move relative to the first positioning post; when the first locking member is in a locked state, the fixing part cannot move relative to the first positioning post. Therefore, the position of the fixing part relative to the first positioning post can be adjusted via the first locking member, thereby adjusting the position of the positioning part relative to the first positioning post to meet the positioning requirements of the valve cap nozzle.

[0009] As a further improvement to the above technical solution: a first positioning pin is provided on the side of the positioning part away from the fixing part. Therefore, the outer wall of the valve cap can be positioned using the first positioning pin.

[0010] As a further improvement to the above technical solution: the second positioning component includes a connecting section and a positioning section. The connecting section has an L-shaped transverse cross-section and is rotatably connected to the base. The positioning section is connected to the connecting section and is used to position the nozzle of the valve cap. Therefore, by rotatably connecting the connecting section to the base, after the nozzle of the valve cap is positioned, it can be rotated to one side of the first positioning post, so that the positioning section will not interfere with the processing of the nozzle of the valve cap. Thus, rotating the connecting section facilitates the positioning operation of the nozzle of the valve cap and the subsequent processing operations.

[0011] As a further improvement to the above technical solution, a second positioning pin is provided on the positioning section. Therefore, the nozzle of the valve cap can be positioned using the second positioning pin.

[0012] As a further improvement to the above technical solution, it also includes: a second positioning post, one end of which is mounted on the first positioning post, and a second locking member is provided on the first positioning post relative to the second positioning post. The connecting section is rotatably connected to the other end of the second positioning post. Thus, the second locking member ensures that the second positioning post will not detach from the base, thereby ensuring that the second positioning member can rotate relative to the second positioning post.

[0013] As a further improvement to the above technical solution, it also includes a third locking member, which is mounted on the second positioning post and located between the second positioning post and the connecting section. Thus, the third locking member ensures that the second positioning member will not disengage from the second positioning post, thereby ensuring that the second positioning member can rotate relative to the second positioning post.

[0014] As a further improvement to the above technical solution, it also includes a gasket, which is mounted on the second positioning post and located between the connecting section and the third locking member. Thus, the gasket prevents the third locking member from locking the second positioning member onto the second positioning post, ensuring that the second positioning member can rotate relative to the second positioning post.

[0015] As a further improvement to the above technical solution: the first positioning column includes a support part and a mounting part, one end of the support part is connected to the base, the mounting part is installed at the other end of the support part, the mounting part is used to install the valve cap to be processed, and the fixing part is installed on the support part.

[0016] The beneficial effects of this utility model are as follows:

[0017] The valve cap nozzle is positioned by the cooperation of the first and second positioning components. Compared with the existing method of direct clamping and positioning, this method has a simpler structure and is easier to operate. The first and second positioning components can improve the positioning accuracy of the valve cap nozzle and solve the problem of consistent positioning of valve cap nozzles in batches, thereby improving the pass rate of valve cap processing. In addition, the rotatable connection between the second positioning component and the base allows the valve cap to switch back and forth between positioning and processing operations, which facilitates the positioning of the valve cap nozzle and the processing operations after positioning, thereby improving the convenience of valve cap installation and disassembly.

[0018] This utility model also has the following advantages:

[0019] 1. This utility model can adjust the position of the fixing part relative to the first positioning post through the first locking member, so as to adjust the position of the positioning part relative to the first positioning post to meet the positioning requirements of the valve cap spray hole.

[0020] 2. The connection method of this utility model, which rotatably connects the connecting section to the base, allows the valve cap nozzle to be rotated to one side of the first positioning column after the valve cap nozzle is positioned, so that the positioning section will not interfere with the processing of the valve cap nozzle. Thus, rotating the connecting section facilitates the positioning operation of the valve cap nozzle and the subsequent processing operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the positioning state of the tooling fixture based on valve cap nozzle machining according to this utility model;

[0022] Figure 2 This is a top view of the tooling fixture for the valve cap nozzle machining of this utility model in its positioning state.

[0023] Figure 3 This is a schematic diagram of the tooling fixture for machining the valve cap nozzle based on the present invention.

[0024] Figure 4 This is a top view of the tooling fixture for machining the valve cap nozzle according to this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the first positioning component of this utility model;

[0026] Figure 6 This is a schematic diagram of the result of the second positioning component of this utility model;

[0027] Figure 7 This is a schematic diagram of the valve cap of this utility model;

[0028] Figure 8 This is a rendering of the valve cap positioning state of this utility model;

[0029] Figure 9 This is a rendering of the valve cap in the processing state of this utility model.

[0030] Among them: 1. First positioning post;

[0031] 101. Support section; 102. Installation section;

[0032] 2. First positioning component;

[0033] 201. Fixing part; 202. Positioning part; 203. First locking element; 204. First positioning pin;

[0034] 3. Second positioning component;

[0035] 301. Connecting section; 302. Positioning section; 303. Second positioning pin;

[0036] 4. Base;

[0037] 5. Second positioning post;

[0038] 6. Second locking element;

[0039] 7. Third locking component;

[0040] 8. Gaskets. Detailed Implementation

[0041] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0042] like Figures 1 to 9The figure shown is the preferred embodiment of this utility model. The tooling fixture for processing the nozzle of the valve cap in this embodiment includes: a first positioning post 1, a first positioning element 2, a second positioning element 3, and a base 4. The first positioning post 1 is used to install the valve cap to be processed. The first positioning element 2 is installed on the first positioning post 1. The second positioning element 3 is located on the side of the first positioning post 1 away from the first positioning element 2. The first positioning element 2 is used to position the valve cap. The second positioning element 3 is used to fix the nozzle of the valve cap. The first positioning post 1 is connected to the base 4, and the second positioning element 3 is rotatably connected to the base 4. Therefore, by cooperating with the first positioning element 2 and the second positioning element 3, the valve cap nozzle is positioned. Compared with the existing method of direct clamping and positioning, this method has a simple structure and is easy to operate. The positioning accuracy of the valve cap nozzle can be improved by the first positioning element 2 and the second positioning element 3, and the positioning consistency of the valve cap nozzle in batches can be solved, thereby improving the pass rate of valve cap processing. In addition, the rotational connection between the second positioning element 3 and the base 4 allows the valve cap to switch back and forth between positioning and processing operations, so as to facilitate the positioning of the valve cap nozzle and the processing operations after positioning, thereby improving the convenience of valve cap installation and disassembly.

[0043] In this embodiment, the first positioning member 2 includes a fixing part 201 and a positioning part 202. The fixing part 201 is mounted on the first positioning post 1, and the positioning part 202 is mounted on the fixing part 201. The fixing part 201 is mounted on the first positioning post 1 via a first locking member 203. When the first locking member 203 is in a relaxed state, the fixing part 201 can move relative to the first positioning post 1. When the first locking member 203 is in a locked state, the fixing part 201 cannot move relative to the first positioning post 1. A first positioning pin 204 is provided on the side of the positioning part 202 away from the fixing part 201. Thus, the position of the fixing part 201 relative to the first positioning post 1 can be adjusted by the first locking member 203, so that the position of the positioning part 202 relative to the first positioning post 1 can be adjusted to meet the positioning requirements of the valve cap nozzle. The first positioning pin 204 can be used to position the outer wall of the valve cap.

[0044] For example, the first locking element 203 uses a set screw, and the second locking element 6 uses a ball-head set screw.

[0045] In this embodiment, the second positioning component 3 includes a connecting section 301 and a positioning section 302. The connecting section 301 has an L-shaped transverse cross-section and is rotatably connected to the base 4. The positioning section 302 is connected to the connecting section 301 and is used to position the nozzle of the valve cap. A second positioning pin 303 is provided on the positioning section 302. Thus, the rotatable connection between the connecting section 301 and the base 4 allows the valve cap nozzle to be rotated to one side of the first positioning post 1 after positioning, so that the positioning section 302 will not interfere with the processing of the valve cap nozzle. In this way, rotating the connecting section 301 facilitates the positioning operation of the valve cap nozzle and the subsequent processing operation; the second positioning pin 303 can position the nozzle of the valve cap.

[0046] It should be noted that:

[0047] I. For example Figure 1 , Figure 2 , Figure 8 As shown, the positioning section 302, the first positioning post 1, and the positioning part 202 are on the same axis. Thus, the positioning section 302 and the positioning part 202 position the valve cap from both sides of the valve cap. The positioning part 202 is used to fix the side wall of the valve cap, and the positioning section 302 is used to position the nozzle of the valve cap.

[0048] II. Figure 3 , Figure 4 , Figure 9 As shown, the positioning section 302 and the positioning part 202 are parallel to each other. Thus, the positioning section 302 is far away from the positioning part 202, and the position of the valve cap nozzle has a certain amount of space for the processing of the valve cap nozzle.

[0049] In this embodiment, a second positioning post 5 is also included. One end of the second positioning post 5 is mounted on the first positioning post 1, and a second locking member 6 is provided at a position of the first positioning post 1 relative to the second positioning post 5. The connecting section 301 is rotatably connected to the other end of the second positioning post 5. Thus, the second locking member 6 ensures that the second positioning post 5 will not detach from the base 4, thereby ensuring that the second positioning member 3 can rotate relative to the second positioning post 5.

[0050] For example, the second locking element 6 uses a set screw.

[0051] In this embodiment, the system further includes a third locking member 7 and a washer 8. The third locking member 7 is mounted on the second positioning post 5 and is located between the second positioning post 5 and the connecting section 301. The washer 8 is mounted on the second positioning post 5 and is located between the connecting section 301 and the third locking member 7. Thus, the third locking member 7 ensures that the second positioning member 3 will not disengage from the second positioning post 5, thereby ensuring that the second positioning member 3 can rotate relative to the second positioning post 5. The washer 8 prevents the third locking member 7 from locking the second positioning member 3 to the second positioning post 5, ensuring that the second positioning member 3 can rotate relative to the second positioning post 5.

[0052] For example, the third locking element 7 uses a nut.

[0053] In this embodiment, the first positioning post 1 includes a support part 101 and a mounting part 102. One end of the support part 101 is connected to the base 4, and the mounting part 102 is installed at the other end of the support part 101. The mounting part 102 is used to install the valve cap to be processed, and the fixing part 201 is installed on the support part 101.

[0054] The positioning process of the valve cap nozzle of this utility model is as follows: First, the position of the fixing part 201 relative to the supporting part 101 is adjusted by the first locking member 203; then, the valve cap to be processed is placed on the mounting part 102; next, the positioning section 302 is rotated so that the positioning section 302, the first positioning pin 1, and the positioning part 202 are on the same axis; then, the valve cap is rotated so that the nozzle of the valve cap corresponds to the second positioning pin 303, so that the positioning section 302 and the second positioning pin 303 jointly position the nozzle of the valve cap. At the same time, the positioning part 202 and the first positioning pin 204 jointly fix the outer wall of the valve cap, and the positioning section 302 and the positioning part 202 are used to clamp the valve cap; finally, the positioning section 302 is rotated so that the positioning section 302 and the positioning part 202 are parallel to each other, and the position of the valve cap nozzle has sufficient space for the processing equipment (not shown in the figure) to process the nozzle of the valve cap.

[0055] In summary, this utility model uses the cooperation of the first positioning member 2 and the second positioning member 3 to position the valve cap nozzle. Compared with the existing method of direct clamping and positioning, this method has a simple structure and is easy to operate. The first positioning member 2 and the second positioning member 3 can improve the positioning accuracy of the valve cap nozzle and solve the problem of consistent positioning of valve cap nozzles in batches, thereby improving the pass rate of valve cap processing. In addition, the rotatable connection between the second positioning member 3 and the base 4 allows the valve cap to switch back and forth between positioning and processing operations, which facilitates the positioning of the valve cap nozzle and the processing operations after positioning, thereby improving the convenience of valve cap installation and disassembly.

[0056] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A valve cover orifice machining based tooling fixture, characterized by, include: The first positioning post (1) is used to install the valve cap to be processed; The first positioning element (2) and the second positioning element (3) are mounted on the first positioning post (1) and the second positioning element (3) is located on the side of the first positioning post (1) away from the first positioning element (2). The first positioning element (2) is used to fix the valve cap and the second positioning element (3) is used to position the spray hole of the valve cap. The base (4) is connected to the first positioning post (1) and the second positioning member (3) is rotatably connected to the base (4).

2. The bonnet orifice machining fixture of claim 1 wherein: The first positioning element (2) includes: The fixing part (201) and the positioning part (202) are provided, wherein the fixing part (201) is mounted on the first positioning post (1) and the positioning part (202) is mounted on the fixing part (201).

3. The valve trim machining cap-based collet chuck of claim 2, wherein: The fixing part (201) is mounted on the first positioning post (1) by the first locking member (203). When the first locking member (203) is in a relaxed state, the fixing part (201) can move relative to the first positioning post (1). When the first locking member (203) is in a locked state, the fixing part (201) cannot move relative to the first positioning post (1).

4. The valve trim machining cap-based collet chuck of claim 2, wherein: A first positioning pin (204) is provided on the side of the positioning part (202) away from the fixing part (201).

5. The bonnet orifice machining fixture of claim 1 wherein: The second positioning element (3) includes: The connecting section (301) and the positioning section (302) are provided. The connecting section (301) has an L-shaped transverse cross section. The connecting section (301) is rotatably connected to the base (4). The positioning section (302) is connected to the connecting section (301) and is used to position the nozzle of the valve cap.

6. The bonnet orifice machining fixture of claim 5 wherein: The positioning section (302) is provided with a second positioning pin (303).

7. The bonnet orifice machining fixture of claim 5 wherein: Also includes: The second positioning post (5) is mounted on the first positioning post (1) at one end, and the first positioning post (1) is provided with a second locking member (6) at a position relative to the second positioning post (5). The connecting section (301) is rotatably connected to the other end of the second positioning post (5).

8. The bonnet orifice machining fixture of claim 7 wherein: Also includes: The third locking member (7) is installed on the second positioning post (5) and is located between the second positioning post (5) and the connecting section (301).

9. The valve trim machining cap-based collet fixture of claim 8, wherein: Also includes: A gasket (8) is mounted on the second positioning post (5) and is located between the connecting section (301) and the third locking member (7).

10. The bonnet orifice machining fixture of claim 2 wherein: The first positioning post (1) includes: The support part (101) and the mounting part (102) are provided. One end of the support part (101) is connected to the base (4). The mounting part (102) is installed on the other end of the support part (101). The mounting part (102) is used to install the valve cap to be processed. The fixing part (201) is installed on the support part (101).

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